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<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        .box1{
            width: 100px;
            height: 100px;
            background-color: aqua;
            position: fixed;
            right: 100px;
            bottom: 80px;
            align-items: center;
        }
    </style>
</head>
<body>
    <p>box1 固定定位  
    </p>
    <p>绝对定位和相对定位 相对于父容器，如果父容器没有定位，则向上寻找 直到定位到最上层有定位的父容器</p>
    <div class="box1">
        <p style="text-align: center;color: white;">联系客服</p>
    </div>
    <div class="box2"></div>
    <div class="box3"></div>


    <div>
        <img src="1.jpg" alt="">
    </div>
    
    <div>
        <img src="2.jpg" alt="">
    </div>
    
    <div>
        <img src="3.jpg" alt="">
    </div>
</body>
</html>